Pump.



T. S. BELYEA.

PUMP.

APPLICATION FILED APR.15,1915.

Patented Aug. 1, 1916.

Umm.

TRUMAN S. BELYEA, OF BRO0KLYN,NEW YORK.

Specification of Letters Patent.

' Patented Aug. 1, 1916.

Application filed April 15, 1915. Serial No. 21,578.

To all whom it 'may concern:

Be it known that I, TRUMAN S. BELYEA, a citizen of the United States, and a resident of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Pumps, of which the following is a specification.

This invention relates to improvements in pumps.

The object of the invention is to provide a generally improved blower or pump containing several novel features with a view of providing a more efficient machine adapted to be manufactured and operated. at a low cost.

One object of the invention is to provide an improved form of rtor slides or piston blades.

Another object is to provide a pumping chamber of large capacity.

Still another object is to provide novel means for obtaining a steady flow of air or liquid at the outlet of the blower or pump.

Another object is to provide novel means for attaching or mounting the machine.

Other objects will appear as this specification proceeds.

With the above and ancillary objects in view the invention is embodied in a pump or blower comprising the parts arranged and combined as hereinafter set forth and as illustrated in the accompanying drawings in which,

Figure 1 is a vertical sectional view of a blower embodying my invention. Fig. 2 is an end view with the casing and rotorshown in section. Fig. 3 is a fragmentary plan view, and Fig. 4 is a perspective view of the rotor or piston blades or slides.-

The blower is designed so as to be manufactured at a low cost and the parts are so arranged that very little machine work is required to lfinish them. y

The blower casing 5` is cylindrical and provided with an inlet and outlet 6 and 7, and oil duct 8 and forms a pumping chamber 9.

10 is a bearing secured to the casing 5 by screws 11 or other means. The bearing 10 is provided on each side with afoot pad 12 in the form of a square.

13 is the rotating piston carried bythe shaft 14 supported in the bearing 10 and provided with a portion 15 to which power .may be applied byf-any suitable means not shown. The piston is eccentrically disposed Yin the pumping chamber 9 and is slit at 16 vblades of comparatively light weight for which purpose I propose to use b-akelite, fiber or similar material having good wearing qualities. In order to insure even and good contact `between the contact heads 21 and the inner wall of the pumping chamber 9,'inserts of lead 22 or other heavy material may be used in the heads 21. This construction of the piston blades possesses several advantages. In the first place, the blades may be made as long or longer than the diameter of the rotor, insuring perfect contact with the latter and preventing noise and leaks. Secondly, as the blades are flung apart by the centrifugal force during operation of the machine, the lead inserts by their weight maintain perfect contact with the interior wall of the pumping chamber as is obvious.. Another advantage is the absence of noise. Usually the piston blades are made relatively short and wear out rather soon at the point marked A at the edge of the slot 16 and become loose in the rotor and rattle, and also cause excessive` friction. By making the blades of a length at least equaling the diameter of the rotor, the blades are held firmly within the latter and vibratory movements eliminated. Still another advantage is derived from this construction in that a relatively much larger pumping chamber may be had than when the piston blades extend but a short distance into the piston. Finally, springs for' keeping the blades apart such as are usually employed, are superfluous in this instance and it is possible to make the rotor solid and without any recesses or the like, except the transverse slot 16. Again it will be observed that the rotor and shaft are all in one piece which simply requires turning down to obtain the several necessary diameters of the parts 13, 14 and 15, while the casing 5 and bearing 10 only require to be bored t0 size and finished on the meeting faces. This again makes for easy assembling and dis-assembling of the parts.

The blower is usually connected in a pipe line at its inlet and outlet 6 and 7 In the present. instance I have provided a means for concentrating or mufliing the puffing of the pumping or blowing operation by connecting a muflier tank or member 25 to the outlet 7 by means of an outlet pipe 26. The tank is provided with a baffle plate 27 and an outlet 28 for connection to the pipe line or other .elements into which the blower or pump discharges. The bottom of the tank is sloping and connected by a pipe 29 t0 the oil duct 8 aforesaid.

The usual lubricant may of course be introduced into the pumping chamber when the machine is assembled after which it will be clear that minute quantities of the lubricant will be carried awa-y by the air or liquid pumped through the machine. But when the flow of air or liquid impinges on the baflie plate 27 the lubricant will adhere to and gather on the latter from which it will then drop down into the bottom of the tank and flow back to the oil duct 8 at a point where there is no pressure and consequently the lubricant Will again enter the pumping chamber and be used over again. It also follows that because of the constricted mouth 30 at the bottom of the baffle plate 27 and the sinuous path of the pumped air or liquid within the tank, a steady flow or stream is obtained at the tank outlet 28.

Means are provided whereby the pump may be mounted in several positions without changing the construction. To this end the machine is supported on two feet 31, 31 adjustably carried by the aforesaid foot pads 12 by means of bolts 32 in the latter which pass through slots 33 in the feet, which are also provided with guiding flanges 311 which overlap the ysides of the foot pads as shown in Fig. 3. It follows that byv loosening the bolts 32 the feet 31 may be moved up or down to adjust the height of the machine. And as shown in dotted lines in Fig. 1 the feet may be adjusted parallel to the rotor aXis for mounting the machine on a wall or the like and of course, the feet may be turned upward and the machine then be suspended from a ceiling or the like if desired. In each instance the feet are held in predetermined angular position with respect to the machine because of the flanges 34 overlapping the sides of the foot pad 12 and as will be understood.

The tank 25 may of course be dispensed with and the inlet and outlet 6 and 7 connected direct. rIhe pump may be driven in either direction without changing the construction, and if the tank be used, the ipe 26A is quickly moved from the aperture to the aperture 6. Other changes and modifications of the invention may be introduced within the principle of the invention and the scope of the appended claims.

I claim:

1. rlhe combination of a casing forming a chamber having an inlet and an outlet, a piston mounted to rotate within said chamber and provided with a transverse slot of uniform width, a pair of piston blades arranged to slide in parallel in said slot, each of said blades being of a greater length than the slot and means for operating the said piston.

2. The combination of a casing forming a chamber having an inlet and an outlet, a cylindrical piston mounted to rotate within said chamber and provided with a diametrically disposed transverse slot, a pair of piston blades of relatively light material arranged to slide in said slot and provided with weighted ends adapted to contact with the inner wall of said chamber, said blades being longer than the diameter of the said piston and means for rotating the latter.

3. 'Ihe combination with a pump casing or frame, rectangular foot pads arranged on opposite sides of said frame, a pair of supporting feet adaptedto be placed in several angularly different predetermined positions with respect to said foot pads and having' guiding flanges adapted to coperate with the sides of said foot pads in the several said positions and means for adjustably securing the said feet to the said foot pads.

l. |The combination of a bearing member, rectangular foot pads arranged on opposite sides of said bearing member, a pair of supporting feet adapted to be placed in several angularly different predetermined positions with respect to said foot pads and having guiding flanges adapted to coperate with the sides of said foot pads in the several said positions, means for adj'ustably securing the said feet to the said foot pads, a cylindrical casing secured to the said bearing member at the one end thereof, a piston in said casinghaving an integral shaft journaled in the said bearing member and projecting from the latter for driving the said piston.

Signed at New York in the-county of New York and State of New York this 2nd day of April A. D. 1915.

TRUMAN S. BELYEA. 

